package main

import (
	"fmt"
	"os"
)

func main() {
	args := os.Args

	if args == nil || len(args) < 2 {
		fmt.Println("err")

		return
	}

	ip := args[1]
	port := args[2]
	fmt.Printf("ip = %s, port = %s\n", ip, port)
}
